<template>
   <div>
     <h2> 我是son组件</h2>
     <grand-son></grand-son>
   </div>
</template>
<script lang = "ts">
import { defineComponent, ref } from 'vue'
import  GrandSon from './grandSon.vue'
export default defineComponent({
   name: 'son',
   components:{
      GrandSon
   }
})
</script>

